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Used in the north west of England, Gammy means disgusting or horrible
Are you shagged Clare she's gammy lad
Gammy by It's wagwon June 13, 2017
Means disgusting, gross, manky etc.

It's one of them words you start saying as a joke but then can't stop saying, like "bro" and "same" and stuff
You gammy boy
Gammy by Xjxicixhhdjxjs April 14, 2019
Its basically half and half of broken and disgusting,like if my mate fingered his arse and licked it I'd proceed to say "ah you gammy fuck,fuck off"
Ma,I've got a gammy cut on me leg.would ye take a look?(then she'd probably say somthin' like:get your gammy leg away from me you dirty bastard!)
Gammy by "That la over October 27, 2019
A good looking person who is also kind and will do anything to achieve his goals. Once you meet him you will immediately fall in love (just kidding) but if you meet him he’ll make sure to always make you happy sometimes... he is the most badass, cool and caring person ever!
Jimmy: who’s your new friend John?

John: my new friend’s name is gammy and he’s freaking awesome! he just bought me an ice cream.

Jimmy: aw man I wish I had a friend like gammy.
Gammy by Gammy bear October 15, 2020
A classic old person who is unwilling to accept new ideas and believes that they are always right when they are 100% wrong. They have no evidence to back up their "facts" but and their only defense is "I know I'm right". They also rely heavily on answers.com for information and smell terrible.
2+2 is 5?! What are you, Gammy?
Gammy by BaxterHerman May 4, 2021
Mattew is really gammy
Gammy by Da Rinci September 28, 2021